Biggest size valves for LS1/6 style heads?
01-21-2003, 10:30 AM
#1
Racer
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Biggest size valves for LS1/6 style heads?
What is the biggest size valve someone has put into a LS1-Ls6 style head (4.8 5.3 5.7 6.0)? Im talking big inch stroker heads 434 cid and up. Biggest intake valve and exhaust valve and what head flows best with theese huge valves?
01-21-2003, 11:06 AM
#2
Le Mans Master
Re: Biggest size valves for LS1/6 style heads? (Mike TexaSS)
With a bore of 4.125", one can fit 2.125" intake and 1.625" exhaust valves. These are the size valves used on the C5R heads :)
Keith
Keith
01-21-2003, 01:31 PM
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Cruise-In I, II, III, IV & V Veteran
CI-I & II Auto-X Champ
Re: Biggest size valves for LS1/6 style heads? (kromberg)
I have 2.08 / 1.60 valves in my ARE Stage III LS1 heads that are on my 436ci.
I dont see a need to go any bigger than that unless you are going with LOTSA lift and LOTSA duration.
ARE usually uses 2.55/1.57 or 2.08/1.60 in their big cube Stage III heads.
I dont see a need to go any bigger than that unless you are going with LOTSA lift and LOTSA duration.
ARE usually uses 2.55/1.57 or 2.08/1.60 in their big cube Stage III heads.
